This plugin is a easy to use addon for WPform which helps to send form data to ActiveCampaign lists with very less configuration and easy to use interface.
Documentation: View Online
If you are looking to integrate Active Campaign with Contact Form 7 then here is plugin link: Active Campaign & Contact Form 7
Adds subscription in “Active Campaign” through “WPform”
Option to select “Active Campaign” list ID for subscribers
Option to select “WPform” fields for “Active Campaign” list